You push a box of mass 16.3 kg with your car up to an icy hill...
You push a box of mass 16.3 kg with your car up to an icy hill slope of irregular shape to a height 4.5 m. The box has a speed 12.3 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) before immediately falling off a sheer cliff to the ground (with no drag).
(a) What is the speed of the box at the top of the hill?
(b) What is the direction (unit vector) of the box's velocity
just before hitting the ground?
V= ____ x +_____y
Homework Answers
You push a box of mass 22.6 kg with your car up to an icy hill...
You push a box of mass 22.6 kg with your car up to an icy hill slope of irregular shape to a height 4.3 m. The box has a speed 12 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) to a flat area before coming to a rest when hitting a box of mass 89 kg. The heavier box then falls off a sheer cliff...
HILL COLLISION III My Notes You push a box of mass 24.3 kg with your car...
HILL COLLISION III My Notes You push a box of mass 24.3 kg with your car up to an icy hill slope of irregular shape to a height 5.5 m. The box has a speed 11 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) to a flat area before elastically colliding with a smaller box of mass 12 kg. The boxes then fall off a...
A block of mass m slides up and down over a series of smooth icy hills....
A block of mass m slides up and down over a series of smooth icy hills. The top of the first hill is 7.0 m high from the ground level and the speed of the block at the top of the hill is 15m/s. Determine speed of the block when it is at the top of the following hill which is 3.0 m high from the zero level. A) 17 m/s B) 14m/s C) 10 m/s D) 35 m/s
4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coe...
#4 and #5!!
4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20. What horizontal force must be applied to the box to cause it to start sliding along the surface? 4 :0 ovit 5. A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 300 above the horizontal. It strikes a target above the ground...
Doug uses a 29 N horizontal force to push a 4.5 kg crate up a 1.8...
Doug uses a 29 N horizontal force to push a 4.5 kg crate up a 1.8 m -high, 20° frictionless slope. What is the speed of the crate at the top of the slope? Express your answer to two significant figures and include the appropriate units. U:1 Value Units Submit Previous Answers Request Answer
A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide...
A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide horizontal surface, then hits a horizontal spring with spring constant 500 N/m. The other end of the spring is anchored against a wall. The ground under the spring is frictionless, but the 2.0-m-wide horizontal surface is rough. The coefficient of kinetic friction of the box on this surface is 0.25. (a) What is the speed of the box just before reaching the rough surface?...
Question 3 1 pts A rock is thrown upward from the edge of a cliff that...
Question 3 1 pts A rock is thrown upward from the edge of a cliff that is 20 m high. The object rises 15 m and then falls to the ground. If the positive direction of the x is up, what is the rock's displacement? O 20 m 0-15 m -20 m O 55 m Question 4 1 pts A 4.4-kg mass is falling starting from rest at a height of 22 m. How much time does it take for...
Part C Review A 4.5 kg box slides down a 5.2-m -high frictionless hill starting from rest, across a 2.3-m -wide horizontal surface then hits a horizontal spring with spring constant 470 N/m How far i...
Part C Review A 4.5 kg box slides down a 5.2-m -high frictionless hill starting from rest, across a 2.3-m -wide horizontal surface then hits a horizontal spring with spring constant 470 N/m How far is the spring compressed? Express your answer using two significant figures The other end of the spring is anchored against a wall The ground under the spring is frictionless, but the 2.3-m- long horizontal surface is rough. The coefficient of kinetic friction of the box...
You push a crate of mass 27 kg 15 m up a ramp that is sloped...
You push a crate of mass 27 kg 15 m up a ramp that is sloped 19° above the horizontal. The coefficient of kinetic friction between the ramp and the crate is 0.15, and the speed of the crate, which starts from rest, is 1.7 m/s at the end of the 15 m. To accomplish the task, you apply a variable force directed along the ramp. (a) Calculate the change in the crate’s gravitational potential energy (crate–Earth system). (b) Calculate...
You discover a new microbe while working on a citizen scientist project. The mic in their...
You discover a new microbe while working on a citizen scientist project. The mic in their correct phylogenic niche. In order to determine its evolutionary relatednes 2113 hw 1. launch and fall 45. A all is thrown vertically upward with a speed of 25.0 m/s.tal How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the all take to hit the ground after it reaches its highest point? (d) What...
You push a box of mass 22.6 kg with your car up to an icy hill slope of irregular shape to a height 4.3 m. The box has a speed 12 m/s when it starts up the hill, the same time that you brake. It then rises up to the top (with no friction) to a flat area before coming to a rest when hitting a box of mass 89 kg. The heavier box then falls off a sheer cliff...
#4 and #5!!
4. A 55 kg box rests on a horizontal surfcion betwce the box and the surface is 0.30, and the coefficient of kinetic friction is 0.20. What horizontal force must be applied to the box to cause it to start sliding along the surface? 4 :0 ovit 5. A projectile is launched at ground level with an initial speed of 50.0 m/s at an angle of 300 above the horizontal. It strikes a target above the ground...
Doug uses a 29 N horizontal force to push a 4.5 kg crate up a 1.8 m -high, 20° frictionless slope. What is the speed of the crate at the top of the slope? Express your answer to two significant figures and include the appropriate units. U:1 Value Units Submit Previous Answers Request Answer
A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide horizontal surface, then hits a horizontal spring with spring constant 500 N/m. The other end of the spring is anchored against a wall. The ground under the spring is frictionless, but the 2.0-m-wide horizontal surface is rough. The coefficient of kinetic friction of the box on this surface is 0.25. (a) What is the speed of the box just before reaching the rough surface?...
Question 3 1 pts A rock is thrown upward from the edge of a cliff that is 20 m high. The object rises 15 m and then falls to the ground. If the positive direction of the x is up, what is the rock's displacement? O 20 m 0-15 m -20 m O 55 m Question 4 1 pts A 4.4-kg mass is falling starting from rest at a height of 22 m. How much time does it take for...
Part C Review A 4.5 kg box slides down a 5.2-m -high frictionless hill starting from rest, across a 2.3-m -wide horizontal surface then hits a horizontal spring with spring constant 470 N/m How far is the spring compressed? Express your answer using two significant figures The other end of the spring is anchored against a wall The ground under the spring is frictionless, but the 2.3-m- long horizontal surface is rough. The coefficient of kinetic friction of the box...
You discover a new microbe while working on a citizen scientist project. The mic in their correct phylogenic niche. In order to determine its evolutionary relatednes 2113 hw 1. launch and fall 45. A all is thrown vertically upward with a speed of 25.0 m/s.tal How high does it rise? (b) How long does it take to reach its highest point? (c) How long does the all take to hit the ground after it reaches its highest point? (d) What...
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